GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ad072d72fbf94dfc8846d7250ce1ad4b3e6226d2070e291d4246c45c23b5610b
MD5684a0b0817ea5735fc20ae636a1bc09e
File Typeexe
Size70.0 KB
First Seen2023-04-19
File Name2023-04-18_684a0b0817ea5735fc20ae636a1bc09e_gandcrab
TagsGandcrab

Malware Family: GandCrab

GandCrab, en yaygın eski ransomware'dir.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeMaaS ransomware
First Seen Year2018

Threat Indicators (IOC)

  • SHA256: ad072d72fbf94dfc8846d7250ce1ad4b3e6226d2070e291d4246c45c23b5610b
  • MD5: 684a0b0817ea5735fc20ae636a1bc09e

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Do not pay the ransom — there is no guarantee your files will be restored
  3. Quarantine the affected drives
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Try available decryptor tools (the NoMoreRansom project)
  6. Report the incident to the authorities (cybercrime unit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule GandCrab_SHA256 {
    meta:
        description = "GandCrab sample: ad072d72fbf94dfc"
        threat_level = "critical"
        first_seen = "2023-04-19"
    condition:
        hash.sha256(0, filesize) == "ad072d72fbf94dfc8846d7250ce1ad4b3e6226d2070e291d4246c45c23b5610b"
}

GandCrab — Malware Profile

GandCrab, 2018-2019 aktif RaaS ailesidir. 1.5 milyar USD hasar. RSA+Salsa20. Haziran 2019 kapandi. REvil oncusu.

Malware Type
Ransomware
Programming Language
C
C2 Protocol
HTTP
Target Systems
Windows

Capabilities & Behavior

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

IOC List (2 indicators)

IOC — GandCrab
# SHA256 ad072d72fbf94dfc8846d7250ce1ad4b3e6226d2070e291d4246c45c23b5610b # MD5 684a0b0817ea5735fc20ae636a1bc09e
TypeValueNote
sha256 ad072d72fbf94dfc8846d7250ce1ad4b3e6226d2070e291d4246c45c23b5610b Sample:GandCrab
md5 684a0b0817ea5735fc20ae636a1bc09e Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi